Class 10 Social Science - Contemporary India – II - Chapter Manufacturing Industries NCERT Solutions | Write the answers of the following quest
Write the answers of the following questions in 120 words.
(i) How are integrated steel plants different from mini steel plants? What problems does the industry face? What recent developments have led to a rise in the production capacity?
(ii) How do industries pollute the environment?
(iii) Discuss the steps to be taken to minimise environmental degradation by industry?
(i) integrated steel plans are different from mini steel plants in many aspects. An integrated steel plants is large and handles everything in one complex from integrating raw materials to steel making, rolling and shaping. On the other hand a mini steel plant is smaller has electric furnaces uses steel scrap and sponge iron and has re rollers that use steel ingots as well.
The problems faced by this industry are:
(a) High production costs and limited availability of cooking coal;
(b) Lower productivity of labour;
(c) Irregular supply of energy;and
(d) Poor infrastructure
Recent developments that have led to a rise in the production capacity of this industry are liberalization and foreign direct investment, with help from private entrepreneurs.
(ii)Industries have increased pollution and degraded environment. industries create four types of pollution mainly air , water , land and noise. The smoke emitted by the industry pollutes the air and water immensely. Air pollution is caused by the presence of a higher proportion of undesirable gases such as carbon monoxide and supply oxide. Sources of water pollution are numerous. Most important are the industrial effluent that the discharge into rivers. They are both organic and inorganic. They pollute the water. Unwanted loud noise is also pollution. It arises from industries and the different means of transport. Noise causes impairment to hearing.
(iii) Minimizing the use of water for processing by reusing and recycling it is done in two or more successive stages.
(a) Harvesting of rainwater to meet water requirements .
(b) Treating hot water and effluents before releasing them into rivers and ponds.
Treatment of industrial effluents can be done in three phases:This involves screening, grinding, flocculation and sedimentation.
(a)Primary treatment by mechanical means.
(b) Secondary treatment by biological process.
(c) Tertiary treatment by biological, chemical and physical processes.
This involves recycling of waste water.
More Questions From Class 10 Social Science - Contemporary India – II - Chapter Manufacturing Industries
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Multiple choice questions.
(i) Which one of the following industries uses limestone as a raw material.
(a) Aluminium (b) Cement (c) Plastic (d) Automobile
(ii) Which one of the following agencies markets steel for the public sector plants?
(a) HAIL (b) SAIL (c) TATA Steel (d) MNCC
(iii) Which one of the following industries uses bauxite as a raw material?
(a) Aluminium Smelting (b) Cement (c) Paper (d) Steel
(iv) Which one of the following industries manufactures telephones, computer, etc.
(a) Steel (c) Aluminium Smelting (b) Electronic (d) Information Technology - Q:-
Answer the following briefly in not more than 30 words.
(i) What is manufacturing?
(ii) Name any three physical factors for the location of the industry.
(iii) Name any three human factors for the location of an industry.
(iv) What are basic industries? Give an example.
(v) Name the important raw materials used in the manufacturing of cement?
Popular Questions of Class 10 Social Science - Contemporary India – II
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Multiple choice questions.
(i) Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?
(a) coal (b) bauxite (c) gold (d) zinc
(ii) Koderma, in Jharkhand is the leading producer of which one of the following minerals?
(a) bauxite (b) mica (c) iron ore (d) copper(iii) Minerals are deposited and accumulated in the stratas of which of the following rocks?
(a) sedimentary rocks (c) igneous rocks (b) metamorphic rocks (d) none of the above
(iv) Which one of the following minerals is contained in the Monazite sand?
(a) oil (b) uranium (c) thorium (d) coal - Q:-
Answer the following questions in about 30 words.
(i) State any three merits of roadways.
(ii) Where and why is rail transport the most convenient means of transportation?
(iii) What is the significance of the border roads?
(iv) What is meant by trade? What is the difference between international and local trade? - Q:-
Multiple choice questions.
(i) Which one of the following types of resource is iron ore?
a) Renewable
b) Biotic
c) Flow
d) Non-renewable(ii) Under which of the following type of resource tidal energy cannot be put?
a) Replenishable
b) Human-made
c) Abiotic
d) Non recyclableiii) Which one of the following is the main cause of land degradation in Punjab?
a) Intensive cultivation
b) Deforestation
c) Over irrigation
d) Overgrazing(iv) In which one of the following states is terrace cultivation practised?
a) Punjab
b) Plains of Uttar Pradesh
c) Haryana
d) Uttarakhand(v) In which of the following states black soil is predominantly found?
a) Jammu and Kashmir
b) Maharashtra
c) Rajasthan
d) Jharkhand - Q:-
Q1. Multiple choice questions
(i) Which of these statements is not a valid reason for the depletion of flora and fauna?
a) Agricultural expansion
b) Large scale developmental projects
c) Grazing and fuel wood collection
d) Rapid industrialisation and urbanisation(ii) Which of the following conservation strategies do not directly involve community participation?
a) Joint forest management
b) Beej Bachao Andolan
c) Chipko Movement
d) Demarcation of Wildlife sanctuaries - Q:-
Multiple choice questions.
(i) Based on the information given below classify each of the situations as ‘suffering from water scarcity’ or ‘not suffering from water scarcity’.
a) Region with high annual rainfall.
b) Region having high annual rainfall and large population.
c) Region having high annual rainfall but water is highly polluted.
d) Region having low rainfall and low population.(ii) Which one of the following statements is not an argument in favour of multipurpose river projects?
a) Multi-purpose projects bring water to those areas which suffer from water scarcity.
b) Multi-purpose projects by regulating water flow help to control floods.
c) Multi-purpose projects lead to large scale displacements and loss of livelihood.
d) Multi-purpose projects generate electricity for our industries and our homes.iii) Here are some false statements. Identify the mistakes and rewrite them correctly.
a) Multiplying urban centres with large and dense populations and urban life styles have helped in proper utilisation of water resources.
b) Regulating and damming of rivers does not affect the river's natural flow and its sediment flow.
c) In Gujarat, the Sabarmati basin farmers were not agitated when higher priority was given to water supply in urban areas, particularly during droughts.
d) Today in Rajasthan, the practice of rooftop rainwater water harvesting has gained popularity despite high water availability due to the Indira Gandhi Canal. - Q:-
Multiple choice questions.
(i) Which one of the following describes a system of agriculture where a single crop is grown on a large area?
a) Shifting Agriculture
b) Plantation Agriculture
c) Horticulture
d) Intensive Agriculture(ii) Which one of the following is a rabi crop?
a) Rice
b) Gram
c) Millets
d) Cotton(iii) Which one of the following is a leguminous crop?
a) Pulses
b) Jawar
c) Millets
d) Sesamum(iv) Which one of the following is announced by the government in support of a crop?
a) Maximum support price
b) Minimum support price
c) Moderate support price
d) Influential support price - Q:-
Answer the following questions in about 30 words.
(i) Distinguish between the following in not more than 30 words.
(a) ferrous and non-ferrous minerals (b) conventional and non-conventional sources of energy
(ii) What is a mineral?
(iii) How are minerals formed in igneous and metamorphic rocks?
(iv) Why do we need to conserve mineral resources ? - Q:-
Answer the following questions in about 30 words.
i) Name three states having black soil and the crop which is mainly grown in it.
ii) What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
iii) What steps can be taken to control soil erosion in the hilly areas?
iv) What are the biotic and abiotic resources? Give some examples. - Q:-
Q2. Match the following animals with their category of existence.
Animals/Plants Category of existence Black buck
Asiatic elephant
Andaman wild pig
Himalayan brown bear
Pink head duckExtinct
Rare
Endangered
Vulnerable
Endemic - Q:-
Answer the following questions in about 30 words.
(i) Explain how water becomes a renewable resource.
(ii) What is water scarcity and what are its main causes?
(iii) Compare the advantages and disadvantages of multi-purpose river projects.
Recently Viewed Questions of Class 10 Social Science - Contemporary India – II
- Q:-
Multiple choice questions.
(i) Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material?
(a) coal (b) bauxite (c) gold (d) zinc
(ii) Koderma, in Jharkhand is the leading producer of which one of the following minerals?
(a) bauxite (b) mica (c) iron ore (d) copper(iii) Minerals are deposited and accumulated in the stratas of which of the following rocks?
(a) sedimentary rocks (c) igneous rocks (b) metamorphic rocks (d) none of the above
(iv) Which one of the following minerals is contained in the Monazite sand?
(a) oil (b) uranium (c) thorium (d) coal - Q:-
Answer the following questions in about 120 words.
(i) Discuss how rain water harvesting in semi-arid regions of Rajasthan is carried out.
(ii) Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water. - Q:-
Answer the following questions in about 30 words.
i) Name three states having black soil and the crop which is mainly grown in it.
ii) What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
iii) What steps can be taken to control soil erosion in the hilly areas?
iv) What are the biotic and abiotic resources? Give some examples. - Q:-
(i) Natural endowments in the form of land, water, vegetation and minerals.
(ii) A type of non-renewable resource.
(iii) Soil with high water retaining capacity.
(iv) Intensively leached soils of the monsoon climate.
(v) Plantation of trees on a large scale to check soil erosion.
(vi) The Great Plains of India are made up of these soils. - Q:-
Answer the following questions in about 120 words.
(i) Describe how communities have conserved and protected forests and wildlife in India.
(ii) Write a note on good practices towards conserving forest and wildlife. - Q:-
Answer the following questions in about 120 words.
i) Explain land use pattern in India and why has the land under forest not increased much since 1960-619?
ii) How have technical and economic development led to more consumption of resources? - Q:-
Answer the following questions in about 120 words.
(i) Describe the distribution of coal in India.
(ii) Why do you think that solar energy has a bright future in India? - Q:-
Q2. Match the following animals with their category of existence.
Animals/Plants Category of existence Black buck
Asiatic elephant
Andaman wild pig
Himalayan brown bear
Pink head duckExtinct
Rare
Endangered
Vulnerable
Endemic - Q:-
Answer the following questions in about 30 words.
(i) Explain how water becomes a renewable resource.
(ii) What is water scarcity and what are its main causes?
(iii) Compare the advantages and disadvantages of multi-purpose river projects. - Q:-
Match the following.
Reserved Forests
Protected Forests
Unclassed Forests
other forests and wastelands belonging to both government and private individuals and communities.
forests are regarded as most valuable as far as the conservation of forest and wildlife resources.
forest lands are Protected from any further depletion.
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